Gentoo Archives: gentoo-user

From: Xav' <xp@××××××××.fr>
To: gentoo-user@l.g.o
Subject: [gentoo-user] RAID0 + LVM2 + XFS : raid0_make_request bug: can't convert block across chunks or bigger than 64k
Date: Wed, 14 Jan 2009 19:59:02
Message-Id: 496E43FD.9060109@linuxant.fr
1 Hi everyone !
2
3 I've setted up a Xen server with kernel 2.6.18-r12 with 2 SATAII disks
4 of 750Go and with the following partitions scheme :
5 dom0 ~ # sfdisk -l
6
7 Disk /dev/sda: 91201 cylinders, 255 heads, 63 sectors/track
8 Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
9
10 Device Boot Start End #cyls #blocks Id System
11 /dev/sda1 * 0+ 64 65- 522081 fd Linux raid autodetect
12 /dev/sda2 65 586 522 4192965 fd Linux raid autodetect
13 /dev/sda3 587 847 261 2096482+ 82 Linux swap / Solaris
14 /dev/sda4 848 91200 90353 725760472+ fd Linux raid autodetect
15
16 Disk /dev/sdb: 91201 cylinders, 255 heads, 63 sectors/track
17 Units = cylinders of 8225280 bytes, blocks of 1024 bytes, counting from 0
18
19 Device Boot Start End #cyls #blocks Id System
20 /dev/sdb1 0+ 64 65- 522081 fd Linux raid autodetect
21 /dev/sdb2 65 586 522 4192965 fd Linux raid autodetect
22 /dev/sdb3 587 847 261 2096482+ 82 Linux swap / Solaris
23 /dev/sdb4 848 91200 90353 725760472+ fd Linux raid autodetect
24
25 dom0 ~ # cat /proc/mdstat
26 Personalities : [raid0] [raid1]
27 md1 : active raid1 sdb1[1] sda1[0]
28 521984 blocks [2/2] [UU]
29
30 md2 : active raid0 sdb2[1] sda2[0]
31 8385792 blocks 64k chunks
32
33 md3 : active raid0 sdb4[1] sda4[0]
34 1451520768 blocks 64k chunks
35
36 dom0 ~ # pvdisplay
37 File descriptor 3 left open
38 --- Physical volume ---
39 PV Name /dev/md3
40 VG Name vg
41 PV Size 1,35 TB / not usable 768,00 KB
42 Allocatable yes
43 PE Size (KByte) 4096
44 Total PE 354375
45 Free PE 271815
46 Allocated PE 82560
47 PV UUID tJg59C-SN1z-SkYX-Qs5H-1TXV-ynNd-HhGTOZ
48
49 unused devices: <none>
50
51
52 I've created some guests using LVM logiccal volumes on /dev/md3 and
53 formatted with XFS filesystem. Sometimes, i've this messages in dmesg on
54 dom0 :
55 raid0_make_request bug: can't convert block across chunks or bigger than 64k
56
57 After that bugs, there is many Input/Output errors in the guest, and so
58 broke his gentoo installation so make me impossible to read the guest
59 system logs. Any help would be greatly appreciated as this server
60 actually host my primary DNS server and so i can't reinstall it from
61 scratch.
62
63 Many thanks in advance.
64
65 Xavier

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Re: [gentoo-user] RAID0 + LVM2 + XFS : raid0_make_request bug Xav' <xp@××××××××.fr>